The Duchess of Cornwall turned heads last night - by wearing the Queen Mother's old tiara.Camilla chose the South African diamond headpiece for a Buckingham Palace banquet for Brazilian leader Luiz Inacio Lula da Silva.The duchess borrowed it from the queen. It is the second piece of jewelry Prince Charles' new wife has borrowed - she wore another of the late queen mother's tiaras last year.Camilla also owns a £500,000 ring and £2,500 brooch which used to belong to the late royal.However, the duchess' choice of fashion wear is not always met with approval.She recently provoked outrage for wearing a rabbit fur scarf. Animal right campaigners PETA blasted Camilla for being "out of touch" and "setting a bad example".

Camilla was photographed wearing the fur at a recent tree planting ceremony with Prince Charles.PETA spokeswoman Anita Singh said that her choice to wear fur was surprising considering her high public profile.

She said: "She should be setting a good example. "She is flying in the face of public opinion, which is overwhelmingly opposed to the breeding of animals for the fur trade. It's a terrible example to set."